Philips 74lvt16541a DATASHEETS

Philips Semiconductors Low Voltage Products Preliminary specification

74LVT16541A3.3V ABT 16-bit buffer/driver (3-State)

1

July 1994

FEATURES

• 16-bit universal bus interface

• 3-State buffers

• Output capability: +64mA/-32mA

• TTL input and output switching levels

• Input and output interface capability to

systems at 5V supply

• Bus-hold data inputs eliminate the need for
external pull-up resistors to hold unused
inputs

• Live insertion/extraction permitted

• Power-up 3-State

• No bus current loading when output is tied

to 5V bus

• Latch-up protection exceeds 500mA per
JEDEC JC40.2 Std 17

• ESD protection exceeds 2000V per MIL
STD 883 Method 3015 and 200V per
Machine Model

DESCRIPTION

The LVT16541A is a high-performance
BiCMOS product designed for V

CC

operation

at 3.3V.
This device can be used as two octal buffers

or one 16-bit buffer. The device is ideal for
driving bus lines.

QUICK REFERENCE DATA

SYMBOL PARAMETER

CONDITIONS

T

amb

= 25°C; GND = 0V

TYPICAL UNIT

t

PLH

t

PHL

Propagation delay
nAx to nYx

CL = 50pF;
V

CC

= 3.3V

ns

C

IN

Input capacitance nOEx VI = 0V or 3.0V 4 pF

C

OUT

Output pin capacitance Outputs disabled; VO = 0V or 3.0V 10 pF

I

CCZ

Total supply current Outputs disabled; VCC = 3.6V 100 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER

48-Pin Plastic Shrink Small Outline (SSOP) Type III –40°C to +85°C 74LVT16541ADL SOT370-1
48-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II –40°C to +85°C 74LVT16541ADGG SOT362-1

2 ∇

LOGIC SYMBOL

LOGIC SYMBOL (IEEE/IEC)

1

48

46

44

43

41

40

38

37

47

1OE

0

1OE

1

1A0

1A1

1A2

1A3

1A4

1A5

1A6

1A7

2

3

5

6

8

9

11

12

1Y0

1Y1

1Y2

1Y3

1Y4

1Y5

1Y6

1Y7

2OE

0

1OE

1

2Y0

24

25

36

35

33

32

30

29

27

26

2A0

2A1

2A2

2A3

2A4

2A5

2A6

2A7

13

14

16

17

19

20

22

23

2Y1

2Y2

2Y3

2Y4

2Y5

2Y6

2Y7

& EN1

1

48

47
46
44
43
41
40
38
37

2 ∇

& EN2

24
25

36
35
33
32
30
29
27
26

2
3
5
6
8
9

11

12

13
14
16
17
19
20
22
23

Philips Semiconductors Low Voltage Products Preliminary specification

74LVT16541A3.3V ABT 16-bit buffer/driver (3-State)

July 1994

2

PIN CONFIGURATION

GND

GND

V

CC

V

CC

GND

GND

1OE0
1A0
1A1

1A2
1A3

1A4
1A5

1A6
1A7
2A0
2A1

2A2
2A3

2A4
2A5

2A6
2A7
2OE

0

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

21
22
23
24

41

42

43

44

45

46

47

48

1OE1
1Y0
1Y1

GND
1Y2

1Y3
V

CC

1Y4
1Y5
GND
1Y6
1Y7
2Y0
2Y1
GND
2Y2
2Y3
V

CC

2Y4
2Y5
GND
2Y6
2Y7
2OE

1

PIN DESCRIPTION

PIN NUMBER SYMBOL NAME AND FUNCTION

47, 46, 44, 43, 41, 40, 38, 37,

36, 35, 33, 32, 30, 29, 27, 26

1A0–1A7
2A0–2A7

Data inputs

2, 3, 5, 6, 8, 9, 11, 12,13,
14, 16, 17, 19, 20, 22, 23

1Y0–1Y7
2Y0–2Y7

Data outputs

1, 48

24, 25

1OE0, 1OE1,

2OE

0, 2OE1

Output enables

4, 10, 15, 21,

28, 34, 39, 45

GND Ground (0V)

7, 18, 31, 42 V

CC

Positive supply voltage

FUNCTION TABLE

INPUTS OUTPUTS

nOE0 nOE1 nAx nYx

L L L L
L L H H
X H X Z

H X X Z

H = High voltage level
L = Low voltage level
X = Don’t care
Z = High Impedance “off” state